Home / 4,140.30-6,210.45-3,605.70

Finding the Fourth Proportional to 4,140.30, 6,210.45 and 3,605.70

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Solution

The fourth proportional to 4,140.30, 6,210.45 and 3,605.70 is: 5,408.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140.30 : 6,210.45 = 3,605.70 : x
  2. Step 2: Convert to fraction form
    4,140.30/6,210.45 = 3,605.70/x
  3. Step 3: Cross multiply
    4,140.30x = 6,210.45 × 3,605.70
  4. Step 4: Simplify right side
    4,140.30x = 22,393,019.57
  5. Step 5: Solve for x
    x = 22,393,019.57/4,140.30
  6. Step 6: Final answer
    x = 5,408.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.